Window-venthiator



F. SCELTZ.

WINDOW VENTILATOR. APPLmAmH FILED Ffa, 9, i920.

i315. j W

from/frs UNITED STATES FRANK BCELTZ, OF HARRISON, NEW YORK.

WINDOW-VENT'ILATOR.

Specification ot Letters Intent.

Patented Sept. 21, 1920.

Application led February 9, 1920. Serial No. 857,464.

To all whom it may concern:

Be it known `that I, F RANK Som/rz, a sub- 'ect of the King of Italy,a.nd a resident of arrison, in the county of Vestehester and State of New York, have invented u new and Improved Window-Ventilator, of which the following is e full, clear, and exact deseription.

It is well understood that any number ot' devices have been constructed with a, view of providing` a window ventilator' which is especially adaptable for a sleeping room, to be used at ni ht.

These devices have for the most pa rt proven impractical for the reason that no adjustment of the ventilator has been provided, so that where it has been merely desirable to provide a. smaller opening, so as to permit of adequate ventilation Without the room becoming too completely chilled, this has been im ossible.

A further de ect in devices heretofore known has existed in that the air was not properly ltered, or cleaned, which is particularly to be desired in Winter when great numbers of heating plants are in operation.

In devices which have provided a certain amount oi filtering action on the air, no pro vision has been made for the cleaning oi the filteringr element so that the ventilator quickly become unsightly.

A further defect in devices of this nature was to be found in that the same nere interposed between the sash and frame. so that upon the ventilator being onus positioned, it was impossible to move the frame.

have now invented an improved type of ventilator which will permit a free movement on the part of the frame, subsequent to the ventilator having been properly positioned, which ventilator will further incorporate r filtering element structure insuringr against the entry of impure air into the room, the filtering element being readily cleanable and at all times sightly; the window ventilator also incorporating structure which will permit of an adjustment of the How of air through the same. Further objects of my invention will nppeor in the annexed specification and drowlngs which represent one practical embodiment of the same, and in which- Figure 1 is a sectlonal view of a window Sash and frame, having associated therewith m improved type of ventilator.

,Fgtg'. ,is e rear view thexlgqf'ghowing the ventilator in a osition permitting the entry of Vonly a small amount of air which will be properly filtered.

Fig. 3 is a reduced rear view of the entire ventilator showin the parts of the some in a position permitting the iniiux of a greater amount of air than is permitted by the arrangement of the parts illustrated in Fig. 2.

In all of these views like reference `numerels designate similar parts, and the reference numeral 1 indicates a Window frame, conventional in all respects, and slidablef` in the sash 2. My improved type of window ventilator is shown in applied position with respect to these parts, and is held in this position by any suitable means such us pins 3. projecting into depressions 4 in the upper face of the sash, the ventilator being removably held in this position by any suitably retractable pins 5, which are adapted to project into sockets forming a part of the side members of the sash 2.

Referring now specifically to the construction of my window ventilator. it will be seen that the same includes a. frame 6 of preferably rectangular construction, a1- though the same may take any desired shape, which frame includes a cut-out portion 7.

Associated with the frame. 6, and arranged adjacentthe edges of the cut-opt portion? are a pair of elliptically arranged under out strips R. Extending between the ends of these strips are a further pair of strips D, between which lies a further strip 1() interposed between the strips 8 and extending parallel to one of the same, that face ot' the strip 14) nearest to the strip 8, which it parallels, being,r under-cut as has been indicated at ll. the side strips 9 being also notched adjacent this under-cut portion so as to complete communication with such under-eut portions adjacent the end of the strip for a purpose more fully hereinafter specified.

A screen 12 is suitably applied to the ven tilator and is adapted to bepermanently associated therewith in this osition. Now with a view of providingr a tering element, a pieoe of sin suitable nateriul 13 is cut so as to have its lon itudinal edges bowed away from one anot er, thus con orming in outline to the elliptically disposed stri s 8 and side strips 9. Adjacent the ed es o the piece of material 13, and associe wi seme by any wnvepient; Ineens,l is L e siliently or otherwiectraetible band 14."

It will now be seen that upon the veritilzb tor having been applied to the sash in the manner illustrated in Figs. 1 and 2, thatit will be possible to more the frame 1 by virtue of the fact that the ventiltor lies in a plane in front of the plane through which the frame 1 travels, and it will thus be possible to regulate the amount of air entering such ventilator by lowering or raising the traine 1. Insects will be prevented from entering through the Ventilator by means ot' the screen 12,.and the material 13 will `exclude any possibility of dirtentering through the ventilator.

It will be appreciated that the material 13 is held in ap )lied position by virtue of the contractilile )and 14 which lies in the under-eut portions of the strips 8 and 9. If it is now desired to permit a greater amount of air to enter into theventilator a similar strip 13 may be utilized, in which event the band 14 of the strip 13 will seat in the under-cut portion 11 ot the strip 10, this being permitted by means of the notched parts ot the strips 9.

It will be appreciated that the material 13 aside from serving as a filtering element also acts as a protector for the parts of the ventilator. and particularly the screen 12 in the event of rain, and it will also be appreciated that by virtue ot' the fact that the longitudinal edges of the material 13 are always held by the elliptically disposed strips that the materiall will always be firmly and neatly stretched upon the ventilator, at the same time by virtue of its application, being readily detachable for the purpose ol cleaning.

Obviously numerous modifications o structure might be resorted to without departing from the scope ot my claims which read;

I claim;

1. A window ventilator, including a trame formed with a cutout portion, strips attached to said frame and adjacent said cut out `ortion, certain of said strips being ellip tica ly arranged with respect one to the other. and a piece of material adapted to be associated th'erewith and adapted to be held in stretched condition thereby.

2. window ventilator, including a frame formed with a cutout portion, strips attached to said frame and adjacent said cutout portion` certain ot' said stripsl being elliptically arranged with respect one to the other, and a piece of material adapted to bc removably associated therewith and adapten to be held in stretched condition thereby` 3. A window ventilator, including a trarne formed with a cut-out portion, undercut strips attached to said frame and arranged attached to said frame and arranged adja cent the edges of said cut-out portion, a strip ot' material conforming to sa id c.ut-out portion, and a contractible band associated with said strip ot material, and adjacent the edges thereof, and adapted to seat` against` the under-eut portion of said strips.

4. A .window ventilator, including a frame formed with a cut-out portion, under-cut strips attached to said frame and arranged adjacent the edges of said cut-out portion, the stripsl arranged adjacent the longitudinal edges of the cut-out portion beingellip-,75

tically disposed one with respect to the'other, and additional strips extendimr across the. tace ot said cut-out portion and parallel to' one of the strips extending adjacent one of the longitudinal edges of said cut-out ior tion. said latter strip being under-eut along the side nearest to the strip which itparal.- lcls, and a piece of material formed with a contractible hand adapted to be removably applied to certain ot' said strips said material being held taut by nieans ,of said elliptically disposed st ri ps.

FRANK SCELTZ. 

